linux-kernel - Re: CPU hotplug hang due to "swap: make each swap partition have one address

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Date:	Mon, 04 Feb 2013 13:49:01 -0700
From:	Stephen Warren <swarren@...dotorg.org>
To:	Shaohua Li <shli@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
CC:	Shaohua Li <shli@...ionio.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"linux-next@...r.kernel.org" <linux-next@...r.kernel.org>,
	Rik van Riel <riel@...hat.com>,
	Minchan Kim <minchan@...nel.org>,
	Joseph Lo <josephl@...dia.com>
Subject: Re: CPU hotplug hang due to "swap: make each swap partition have
 one address_space"

On 02/04/2013 09:57 AM, Stephen Warren wrote:
> On 02/03/2013 07:36 PM, Shaohua Li wrote:
>> On Fri, Feb 01, 2013 at 10:02:33PM -0700, Stephen Warren wrote:
>>> Shaohua,
>>>
>>> In next-20130128, commit 174f064 "swap: make each swap partition have
>>> one address_space" (from the mm/akpm tree) appears causes a hang/RCU
>>> stall for me when hot-unplugging a CPU.
>>
>> does this one work for you?
>> http://marc.info/?l=linux-mm&m=135929599505624&w=2
>> Or try a more recent linux-next. The patch is in akpm's tree.
> 
> Yes, that patch fixes the issue for me, thanks.

I notice this patch is only in Andrew's mmots tree, not mmotm, and hence
isn't included in linux-next. Do you know when it'll be "promoted" and
show up in linux-next?
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